20652020512 has 48 divisors (see below), whose sum is σ = 45316182240. Its totient is φ = 9207088128.

The previous prime is 20652020509. The next prime is 20652020537. The reversal of 20652020512 is 21502025602.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 988698 + ... + 1009369.

It is an arithmetic number, because the mean of its divisors is an integer number (944087130).

Almost surely, 2^20652020512 is an apocalyptic number.

It is an amenable number.

20652020512 is an abundant number, since it is smaller than the sum of its proper divisors (24664161728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20652020512 is a wasteful number, since it uses less digits than its factorization.

20652020512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998113 (or 1998105 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 20652020512 in words is "twenty billion, six hundred fifty-two million, twenty thousand, five hundred twelve".